doctrine2：未定义的索引-具有非默认referencedColumnName的多对一实体不会持久存在

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问题描述

我正在使用Symfony 2.1.2。

I'm using Symfony 2.1.2.

我有两个实体，并在它们之间定义了[多对一（双向）]（1）关联。我不想将主键用作外键（referencedColumnName）。我想使用另一个整数唯一列：customer_no

I have two entities and define a [many-to-one (bidirectional)] (1) association between them. I don't want to use the primary key for the foreign key (referencedColumnName). I want to use another integer unique column: customer_no

/**
 * @ORM\Entity
 * @ORM\Table(name="t_myuser")
 */
class MyUser extends BaseEntity // provides an id (pk)
{
    /**
     * @ORM\ManyToOne(targetEntity="Customer", inversedBy="user")
     * @ORM\JoinColumn(name="customer_no", referencedColumnName="customer_no", nullable=false)
     */
    public $customer;
}

/**
 * @ORM\Entity
 * @ORM\Table(name="t_customer")
 */
class Customer extends BaseEntity // provides an id (pk)
{
    /**
     * @ORM\Column(type="integer", unique=true, nullable=false)
     */
    public $customer_no;

    /**
     * @ORM\OneToMany(targetEntity="MyUser", mappedBy="customer")
     */
    public $user;
}

当我尝试将MyUser实体与Customer实体保持在一起时，我得到了错误：

When I try to persist a MyUser entity with an Customer entity, I get this error:

注意：未定义索引：customer_no in ...供应商\doctrine\orm\lib\Doctrine\ORM\Persisters\ BasicEntityPersister.php第608行

Notice: Undefined index: customer_no in ...\vendor\doctrine\orm\lib\Doctrine\ORM\Persisters\BasicEntityPersister.php line 608

数据库上的架构看起来不错，这些应该是重要的sql架构定义：

The schema on the db looks fine, these should be the important sql schema definitions:

CREATE UNIQUE INDEX UNIQ_B4905AC83CDDA96E ON t_customer (customer_no);
CREATE INDEX IDX_BB041B3B3CDDA96E ON t_myuser (customer_no);
ALTER TABLE t_myuser ADD CONSTRAINT FK_BB041B3B3CDDA96E FOREIGN KEY (customer_no) 
  REFERENCES t_customer (customer_no) NOT DEFERRABLE INITIALLY IMMEDIATE;

因此，绝对是 customer_no 的索引>

//更新：
我修复了inversedBy和mappingBy的问题，但这不是问题。

//update:I fix the inversedBy and mappedBy stuff, but this is not the problem.

（1）：

推荐答案

@ m2mdas：

是的'是的，我认为这是可能的，因为。属性 referencedColumnName 仅适用于您的属性与表列不匹配的情况。

@m2mdas:
Yes you're right, I thought it's possible because JPA (which has influence to doctrine) has this feature. The attribute referencedColumnName only for the case when your property does not match the table column.

无论如何，我发现一个通过修补BasicEntityPersister.php解决方案，请参见github上的要点：

Whatever, I found a solution by patching the BasicEntityPersister.php, see here the gist on github: https://gist.github.com/3800132

解决方案是为映射列添加属性/字段名称和值。此信息已经存在，但未绑定到正确的位置。必须以这种方式将其添加到 $ newValId ：

the solution is to add the property/field name and value for the mapping column. This information is already there but not bound to the right place. It have to be added to the $newValId arrray this way:

$fieldName = $targetClass->getFieldName($targetColumn);
$newValId[$fieldName] = $targetClass->getFieldValue($newVal, $fieldName);

仅适用于ManyToOne参考。 ManyToMany不起作用。

对于ManyToOne，我已经使用现有实体对其进行了测试。您也可以对其进行测试：

It only works for ManyToOne reference. ManyToMany doesn't work.
For ManyToOne I test it with already existing entities. You can test it, too:

在tests / Doctrine / Tests / Models / Legacy / LegacyArticle.php 来自

change the doctrine annotation in tests/Doctrine/Tests/Models/Legacy/LegacyArticle.php from

@JoinColumn(name="iUserId", referencedColumnName="iUserId")

到

@JoinColumn(name="username", referencedColumnName="sUsername")

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